The corporate video - titled the Selfish Ledger - had already provoked controversy after The Verge news site published a copy of it last week. The website described it as showing an "unsettling vision of Silicon Valley social engineering".

This helped bring its existence to Mr Blooms attention.

Mr Bloom - a former camera operator for the BBC, Sky and CNN - has a high profile on social media, where he offers film-making tips.

His YouTube channel has more than 168,000 subscribers and may have been the source for at least some of the copied footage, which included slow-motion video of a snowstorm in New York.

One US-based intellectual property expert said Google might find it hard to defend its behaviour, if the matter were to come to court.

"It just looks bad from a PR perspective for a big company that deals with copyrighted material every second of every day not to respect someone elses rights," said Jennifer Van Doren, from the law firm Morning Star.

"Even if the video was for internal use, the film-maker still has the right to stop its use or require payment to prevent it being copyright infringement."

US law does allow a "fair use" defence to permit unlicensed use of video in some circumstances, but Ms Van Doren said it was typically limited to education, news reporting and criticism of the material itself.
Common problem

It is not unusual for the media industry to avoid copyright payments where they are due.

Film editors, for example, commonly use soundtracks lifted from other films without permission until their own scores are ready, and these can sometimes be played to test audiences.

Mr Bloom has previously complained of his footage being "nicked all the time", including one instance when an online reviewer had used his images in a title sequence used for multiple videos.

But Google has long faced accusations of failing to do enough to respect others intellectual property - whether it be scanning books, presenting others photos or "enabling piracy".

And Mr Bloom has signalled he intends to chase the matter up in this instance.

"This is a good opportunity for people to realise that you cant just download someones content from [YouTube] without permission or licensing - even if you own the company like Google do," he said.